when i rename a file it says if i continue the file might become unusable. why does this happen?

Question

if i continue the icon for the file changes from whatever it was, i.e. wmv or a word document, to a differant icon. they still work though.
how do i stop this happening?

Answer 1

You need to keep the .jpg or .wmv or .doc otherwise the computer doesn't know what the file type is.

Answer 2

Windows identifies files by the 3 letters after the last dot (known as the extension). For example if a file is called file.txt, Windows will assume it is a text file and associate the files with notepad (thus the notepad icon will appear beside the filename). If you take that file and rename it to file.wmv, then Windows will assume it is a multimedia file and place the Windows Media icon next to it.
When you double click on the file then Windows will actually look into the file to determine what the file is. They say the file might become unusable because in the process of looking into the file to see what it is, there is a possibility that the file could become corrupt and therefore unusable.
The only way to stop this happening is to ensure that the extension is correct for the type of file. To ensure this, set Windows Explorer to not hide common file extensions (Tools->Options).
Hope this helps.

Answer 3

What you're doing is also changing the file extension, such as .jpg .bmp .exe, etc.
Say, if you have a file named " Benny.JPG " and you click rename, what you probably did is delete everything and just renamed it to " Bonny " with no ".JPG" on the end. The computer will then not recognise the file type and therefore becomes "unusable".
to fix the problem, just re-attach the file correct file extension to the end.

Answer 4

convinced I filed on a million/30/2013 and well-known the same day. My DD to my bank account is for 2/13/2013. i imagine it really is the success of the draw even as they procedure the returns. My girlfriend did her's on 2/a million/2013 and it remains being processed.

Answer 5

You can change the main name, just don't change what comes after the period. You can change the name from bob.doc to mary.doc, just don't change the .doc, or the computer will not know that it is a document file, and will be unable to open it in any program.

Answer 6

when you rename is the file type showing ?
if so make sure you type this aswell
if this is the case go to control panel
open folder options
view tab
tick the box hide extensions for known files types

Answer 7

What genghis says is correct. Nice eye,

Answer 8

you just cant change its format.

Answer 9

"If it ain`t bust, don`t fix it."